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Table 3 Predictive factors associated with difficulty of ESD performed by trainees

From: Ex vivo porcine model study on the treatment outcomes of scissor-type knife versus needle-type knife in endoscopic submucosal dissection performed by trainees

  Univariate Multivariatea
OR 95% CI P value OR 95% CI P value
Location
 Lower 1 Ref 0.60 1 Ref 0.50
 Middle/upper 1.40 0.40–4.0   1.63 0.40–6.64  
Location
 AW/PW/LC 1 Ref 0.58 1 Ref 0.47
 GC 1.43 0.41–5.1   1.69 0.41–6.96  
Experience of trainee
 J-Trainee 1 Ref 0.34 1 Ref 0.44
 S-Trainee 1.9 0.50–7.58   1.8 0.41–8.02  
Device
 Scissor-type knife 1 Ref 0.03 1 Ref 0.024
 Needle-type knife 4.5 1.15–17.7   5.28 1.25–22.3  
  1. P value was calculated by logistic regression analysis
  2. ESD endoscopic submucosal dissection, OR odds ratio, CI confidence interval, AW anterior wall, PW posterior wall, LC lessor curvature, GC greater curvature, S-Trainee senior-trainee with the experience of over 1000 endoscopies, J-Trainee junior-trainee with the experience of less than 1000 endoscopies
  3. aAdjusted for all factors in this table